/*
 * This file is part of Applied Energistics 2. Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved. Applied
 * Energistics 2 is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General
 * Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any
 * later version. Applied Energistics 2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
 * Public License for more details. You should have received a copy of the GNU Lesser General Public License along with
 * Applied Energistics 2. If not, see <http://www.gnu.org/licenses/lgpl>.
 */

package appeng.parts.misc;

import java.util.ArrayList;
import java.util.EnumSet;
import java.util.List;

import net.minecraft.client.renderer.RenderBlocks;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.IIcon;
import net.minecraftforge.common.util.ForgeDirection;

import org.lwjgl.opengl.GL11;

import appeng.api.AEApi;
import appeng.api.exceptions.FailedConnection;
import appeng.api.networking.IGridConnection;
import appeng.api.networking.IGridNode;
import appeng.api.parts.IPartCollisionHelper;
import appeng.api.parts.IPartHost;
import appeng.api.parts.IPartRenderHelper;
import appeng.api.util.AECableType;
import appeng.client.texture.CableBusTextures;
import appeng.helpers.Reflected;
import appeng.me.helpers.AENetworkProxy;
import appeng.parts.PartBasicState;
import appeng.util.Platform;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;

public class PartToggleBus extends PartBasicState {

    private static final int REDSTONE_FLAG = 8;
    private final AENetworkProxy outerProxy = new AENetworkProxy(this, "outer", null, true);
    private IGridConnection connection;
    private boolean hasRedstone = false;

    @Reflected
    public PartToggleBus(final ItemStack is) {
        super(is);

        this.getProxy().setIdlePowerUsage(0.0);
        this.getOuterProxy().setIdlePowerUsage(0.0);
        this.getProxy().setFlags();
        this.getOuterProxy().setFlags();
    }

    @Override
    public void setColors(final boolean hasChan, final boolean hasPower) {
        this.hasRedstone = (this.getClientFlags() & REDSTONE_FLAG) == REDSTONE_FLAG;
        super.setColors(hasChan && this.hasRedstone, hasPower && this.hasRedstone);
    }

    @Override
    protected int populateFlags(final int cf) {
        return cf | (this.getIntention() ? REDSTONE_FLAG : 0);
    }

    protected boolean getIntention() {
        return this.getHost().hasRedstone(this.getSide());
    }

    @Override
    public IIcon getBreakingTexture() {
        return this.getItemStack().getIconIndex();
    }

    @Override
    public AECableType getCableConnectionType(final ForgeDirection dir) {
        return AECableType.GLASS;
    }

    @Override
    public void securityBreak() {
        if (this.getItemStack().stackSize > 0) {
            final List<ItemStack> items = new ArrayList<>();
            items.add(this.getItemStack().copy());
            this.getHost().removePart(this.getSide(), false);
            Platform.spawnDrops(
                    this.getTile().getWorldObj(),
                    this.getTile().xCoord,
                    this.getTile().yCoord,
                    this.getTile().zCoord,
                    items);
            this.getItemStack().stackSize = 0;
        }
    }

    @Override
    public void getBoxes(final IPartCollisionHelper bch) {
        bch.addBox(6, 6, 11, 10, 10, 16);
    }

    @Override
    @SideOnly(Side.CLIENT)
    public void renderInventory(final IPartRenderHelper rh, final RenderBlocks renderer) {
        GL11.glTranslated(-0.2, -0.3, 0.0);

        rh.setTexture(this.getItemStack().getIconIndex());
        rh.setBounds(6, 6, 14 - 4, 10, 10, 16 - 4);
        rh.renderInventoryBox(renderer);

        rh.setBounds(6, 6, 11 - 4, 10, 10, 13 - 4);
        rh.renderInventoryBox(renderer);

        rh.setBounds(6, 6, 13 - 4, 10, 10, 14 - 4);
        rh.setTexture(CableBusTextures.PartMonitorSidesStatus.getIcon());
        rh.renderInventoryBox(renderer);

        rh.setTexture(CableBusTextures.PartMonitorSidesStatusLights.getIcon());
        rh.setInvColor(0x000000);
        rh.renderInventoryBox(renderer);
        rh.setInvColor(0xffffff);

        rh.setTexture(null);
    }

    @Override
    @SideOnly(Side.CLIENT)
    public void renderStatic(final int x, final int y, final int z, final IPartRenderHelper rh,
            final RenderBlocks renderer) {
        this.setRenderCache(rh.useSimplifiedRendering(x, y, z, this, this.getRenderCache()));
        rh.setTexture(this.getItemStack().getIconIndex());

        rh.setBounds(6, 6, 14, 10, 10, 16);
        rh.renderBlock(x, y, z, renderer);

        rh.setBounds(6, 6, 11, 10, 10, 13);
        rh.renderBlock(x, y, z, renderer);

        rh.setTexture(
                CableBusTextures.PartMonitorSidesStatus.getIcon(),
                CableBusTextures.PartMonitorSidesStatus.getIcon(),
                CableBusTextures.PartMonitorBack.getIcon(),
                this.getItemStack().getIconIndex(),
                CableBusTextures.PartMonitorSidesStatus.getIcon(),
                CableBusTextures.PartMonitorSidesStatus.getIcon());

        rh.setBounds(6, 6, 13, 10, 10, 14);
        rh.renderBlock(x, y, z, renderer);

        this.renderLights(x, y, z, rh, renderer);
    }

    @Override
    public void onNeighborChanged() {
        final boolean oldHasRedstone = this.hasRedstone;
        this.hasRedstone = this.getHost().hasRedstone(this.getSide());

        if (this.hasRedstone != oldHasRedstone) {
            this.updateInternalState();
            this.getHost().markForUpdate();
        }
    }

    @Override
    public void readFromNBT(final NBTTagCompound extra) {
        super.readFromNBT(extra);
        this.getOuterProxy().readFromNBT(extra);
    }

    @Override
    public void writeToNBT(final NBTTagCompound extra) {
        super.writeToNBT(extra);
        this.getOuterProxy().writeToNBT(extra);
    }

    @Override
    public void removeFromWorld() {
        super.removeFromWorld();
        this.getOuterProxy().invalidate();
    }

    @Override
    public void addToWorld() {
        super.addToWorld();
        this.getOuterProxy().onReady();
        this.hasRedstone = this.getHost().hasRedstone(this.getSide());
        this.updateInternalState();
    }

    @Override
    public void setPartHostInfo(final ForgeDirection side, final IPartHost host, final TileEntity tile) {
        super.setPartHostInfo(side, host, tile);
        this.getOuterProxy().setValidSides(EnumSet.of(side));
    }

    @Override
    public IGridNode getExternalFacingNode() {
        return this.getOuterProxy().getNode();
    }

    @Override
    public int cableConnectionRenderTo() {
        return 5;
    }

    @Override
    public void onPlacement(final EntityPlayer player, final ItemStack held, final ForgeDirection side) {
        super.onPlacement(player, held, side);
        this.getOuterProxy().setOwner(player);
    }

    private void updateInternalState() {
        final boolean intention = this.getIntention();
        if (intention == (this.connection == null)) {
            if (this.getProxy().getNode() != null && this.getOuterProxy().getNode() != null) {
                if (intention) {
                    try {
                        this.connection = AEApi.instance()
                                .createGridConnection(this.getProxy().getNode(), this.getOuterProxy().getNode());
                    } catch (final FailedConnection e) {
                        // :(
                    }
                } else {
                    this.connection.destroy();
                    this.connection = null;
                }
            }
        }
    }

    AENetworkProxy getOuterProxy() {
        return this.outerProxy;
    }
}
